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W. P. DO LLOFP. Separable-Button.

No. 226,988. Patented April 27, 1880.

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WELLINGTON P. DOLLOFF, OF PROVIDENCE, RHODE ISLAND, ASSIGNOB TO J. W.GREENE & SMITH, OF NEWT YORK, N. Y.

SEPARABLE BUTTON.

SPECIFICATION forming part of Letters Patent No. 226,988, dated April27, 1880.

Application filed February 19, 1880.

To all whom it may concern Be it known that I, WELLINGTON P. DoL- LOFF,of Providence, in the county of Providence and State of Rhode Island,have invented a new and useful Improvement in Separable Buttons, whichimprovement is fully set forth in the following specification andaccompanying drawings.

My invention relates to an improvement in separable buttons of thatclass in which the upper disk and lower shank are formed with posts thatslide within each other, and has for its object the production of asecure and convenient connection, adjustable automatically, and readilyseparable by means of a simple device, all as hereinafter described, andas specifically pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figurel is a side elevation of a sleeve-button made in accordance with myinvention. Fig. 2 is a side view of the lower shank and exterior post.Fig. 3 is an inside under view of the main disk of the button. Fig. 4contains enlarged views 2 5 of the several parts in detail.

Similar letters of reference in each figure indicate like parts.

My invention consists of a flat hollow post, B, fixed upon the upperdisk, A, or main face 0 of the button, adapted to fit within acorresponding post, 0, on the shank. The shellof the post B extends onthe flat or larger sides continuously from top I) to bottom b, the topand bottom of these sides being cut off straight 3 5 at right angles tothe sides. The top bis connected with the inner part or lining of thedisk A; but the narrow ends of the shell forming the post B are cut soas to leavean opening or notch, preferably triangular in shape,

0 as shown in Fig. 4, N, for the free passage of the smaller arms d ofthe pusher D, as hereinafter described.

In the narrow sides of the post B, at a requisite distance above theopening b are slots N, for the passage of the bolts E.

Within the post B is a longitudinal spring, which, if necessary, may beheld in position by driving a retaining-pin through the post B near thecentral bend of the spring.

E E are small bolts, pierced so as to admit of being threaded onto thetwo terminal ends of the spring, as shown in the broken parts in detail,Fig. 4. These bolts, at the ends that are intended to project outwardlythrough the slots D are finished obliquely, thus enabling them to begraduallyforced backward within the shell of the post B when the outerpost,

(1, is passed over it.

Extending across the diameter of the upper disk, in its under part orlining, are two push- 6o ers, D, having extensions d, forming shoulderscl, as shown in Fig. 4. The two ends of these pushers extend outwardlythrough slots in the peripheral rim of the main button A, and providethe means for operating the whole button. The pushers are of smallerdimensions from the parts extending from the shoulders d, in order toallow them to play easily within the opening b on the narrow sides ofthe post B. The points or ends of the pushers D, passing through theopening b impinge against the ends of the longer arms of the spring F,so that when the ends of the pushers D that extend outwardly, as shownin Fig.' 1, are pressed inwardly, the arms of the springs F, which carrythe bolts E within the shell of the post B, release the bolts from theslots, and when the pushers are released from pressure the springs againproject the oblique ends of the bolts outwardly through the slots b Thusfar I have only explained the construction of the upper portion of myimproved but ton, its several parts, and their operation. I will nowproceed to describe the other portion or shank. This is composed of theusual disk, 8 5 of any desired form, having a hollow post, 0, that willfit over the post B, attached to the main disk. The top and bottom ofthe hollow post 0 are cut oft'at right angles to the shankdisk, and arefastened thereto in the usual 0 manner. Near the free or unattached endof the post 0., on either of its narrower sides, are slots 0, ofdimensions so as to receive the bolts E. When this post Ois slipped overthe post B it passes down without any obstruction 5 until it meets thebolts E 3 but their diverging points form no impediment to the furtherprogress of the enveloping-post O. The bolts, yielding to'the gradualpressure, pass inside of the post B, the pushers following until the mobutton it is obvious that my device can be applied to any description ofbutton or stud.

Having now fully described my invention, what I claim is 1. In aseparable button, the disk A, hav-, ing a tubular post, B, inclosin g anupright bent spring, F, htLXlIlg openings b at the base and slots N, forthe passage of the bolts E E, substantially as described.

2. In a separable button, the disk A, having a tubular post, B,inclosing an upright bent spring, F, and having at its base notches band side slots, D in combination with an exterior tubular shank-post, 0,having slots c, substantially as described.

3. In a separable button, the double-end pushers D, extending beyond theperiphery of 0 the disk A, having narrow extensions (1 andshoulder-stops d, in combination with the 0bliquely-pointed bolts E,pivoted on the spring F, adapted to slide through the slots 12 on thehollow post B and engage Within the slots 0 0n the hollow post 0,interlocking together the two tubular posts B and 0, all operatedsubstantially as described.

WVELLINGTON P. DOLLOFF.

Witnesses:

H. S. BABOOOK, ALONZO T. Onoss.

